Roof Sheathing Clip Spacing
Edge clip requirements depend on the relationship of the panel span rating to the actual distance between roof framing.
Roof sheathing clip spacing. Spacer type panel edge clips may also be used for roof sheathing applications. A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather. Roof sheathing panel spacing hints. Check building code requirements for installation of panel edge clips.
H clips provide additional stiffness between bearing points for the unsupported edges of wood panel plywood or osb roof sheathing along with the necessary 1 8 gap for expansion as shown below illustrated on a bag of simpson h clips. Spacer type panel edge clips are available from some manufacturers. Use a 10d box nail to gauge 1 8 inch spacing between panels. Simpson strong tie panel sheathing clips are used to brace unsupported sheathing edges and provide a 1 8 gap to address shrinkage and expansion of roof sheathing.
Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Spacer type panel edge clips may also be used for roof sheathing applications. 8d ring shank nails should be used instead. Some older h clips do not provide a built in gap.
Use a 10d box 0 128 inch by 3 inch nail as a spacer to gauge 1 8 inch edge and end spacing between panels. A 1 8 inch space between adjacent panel end and edge joints is recommended unless panel manufacturer indicates otherwise. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. The typical thickness range for sheathing is 3 8 to 3 4 inch.
Not always required but a good idea. For improved performance consider thicker roof sheathing panels panel edge clips or panels with tongue and groove edges. Zip system roof assembly combines our revolutionary integrated sheathing and flashing tape or liquid flashing to provide a sealed roof for protection against moisture intrusion during construction or if high winds strip the roof covering away. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.
Sheathing should be a minimum of 19 32 inch thick.